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From: Thomas Zimmermann <tzimmermann@suse.de>
To: airlied@redhat.com, daniel@ffwll.ch,
	maarten.lankhorst@linux.intel.com, mripard@kernel.org,
	zourongrong@gmail.com, kong.kongxinwei@hisilicon.com,
	puck.chen@hisilicon.com, kraxel@redhat.com, sam@ravnborg.org
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	dri-devel@lists.freedesktop.org
Subject: [PATCH v4 7/8] drm/vram-helper: Remove BO device from public interface
Date: Mon,  6 Jan 2020 13:57:44 +0100	[thread overview]
Message-ID: <20200106125745.13797-8-tzimmermann@suse.de> (raw)
In-Reply-To: <20200106125745.13797-1-tzimmermann@suse.de>

TTM is an implementation detail of the VRAM helpers and therefore
shouldn't be exposed to the callers. There's only one correct value
for the BO device anyway, which is the one stored in the DRM device.

So remove struct ttm_bo_device from the VRAM-helper interface and
use the device's VRAM manager unconditionally. The GEM initializer
function fails if the VRAM manager has not been initialized.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
---
 drivers/gpu/drm/ast/ast_mode.c              |  3 +--
 drivers/gpu/drm/drm_gem_vram_helper.c       | 18 +++++++++---------
 drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c |  3 +--
 drivers/gpu/drm/mgag200/mgag200_cursor.c    |  3 +--
 drivers/gpu/drm/mgag200/mgag200_drv.c       |  3 +--
 include/drm/drm_gem_vram_helper.h           |  2 --
 6 files changed, 13 insertions(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index 43572eb11ae9..34608f0499eb 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -1144,8 +1144,7 @@ static int ast_cursor_init(struct drm_device *dev)
 	size = roundup(AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE, PAGE_SIZE);
 
 	for (i = 0; i < ARRAY_SIZE(ast->cursor.gbo); ++i) {
-		gbo = drm_gem_vram_create(dev, &dev->vram_mm->bdev,
-					  size, 0);
+		gbo = drm_gem_vram_create(dev, size, 0);
 		if (IS_ERR(gbo)) {
 			ret = PTR_ERR(gbo);
 			goto err_drm_gem_vram_put;
diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c
index bc181c0e9440..942af7edcd0c 100644
--- a/drivers/gpu/drm/drm_gem_vram_helper.c
+++ b/drivers/gpu/drm/drm_gem_vram_helper.c
@@ -92,13 +92,18 @@ static void drm_gem_vram_placement(struct drm_gem_vram_object *gbo,
 }
 
 static int drm_gem_vram_init(struct drm_device *dev,
-			     struct ttm_bo_device *bdev,
 			     struct drm_gem_vram_object *gbo,
 			     size_t size, unsigned long pg_align)
 {
+	struct drm_vram_mm *vmm = dev->vram_mm;
+	struct ttm_bo_device *bdev;
 	int ret;
 	size_t acc_size;
 
+	if (WARN_ONCE(!vmm, "VRAM MM not initialized"))
+		return -EINVAL;
+	bdev = &vmm->bdev;
+
 	gbo->bo.base.funcs = &drm_gem_vram_object_funcs;
 
 	ret = drm_gem_object_init(dev, &gbo->bo.base, size);
@@ -126,7 +131,6 @@ static int drm_gem_vram_init(struct drm_device *dev,
 /**
  * drm_gem_vram_create() - Creates a VRAM-backed GEM object
  * @dev:		the DRM device
- * @bdev:		the TTM BO device backing the object
  * @size:		the buffer size in bytes
  * @pg_align:		the buffer's alignment in multiples of the page size
  *
@@ -135,7 +139,6 @@ static int drm_gem_vram_init(struct drm_device *dev,
  * an ERR_PTR()-encoded error code otherwise.
  */
 struct drm_gem_vram_object *drm_gem_vram_create(struct drm_device *dev,
-						struct ttm_bo_device *bdev,
 						size_t size,
 						unsigned long pg_align)
 {
@@ -146,7 +149,7 @@ struct drm_gem_vram_object *drm_gem_vram_create(struct drm_device *dev,
 	if (!gbo)
 		return ERR_PTR(-ENOMEM);
 
-	ret = drm_gem_vram_init(dev, bdev, gbo, size, pg_align);
+	ret = drm_gem_vram_init(dev, gbo, size, pg_align);
 	if (ret < 0)
 		goto err_kfree;
 
@@ -480,7 +483,6 @@ EXPORT_SYMBOL(drm_gem_vram_vunmap);
 	Helper for implementing &struct drm_driver.dumb_create
  * @file:		the DRM file
  * @dev:		the DRM device
- * @bdev:		the TTM BO device managing the buffer object
  * @pg_align:		the buffer's alignment in multiples of the page size
  * @pitch_align:	the scanline's alignment in powers of 2
  * @args:		the arguments as provided to \
@@ -497,7 +499,6 @@ EXPORT_SYMBOL(drm_gem_vram_vunmap);
  */
 int drm_gem_vram_fill_create_dumb(struct drm_file *file,
 				  struct drm_device *dev,
-				  struct ttm_bo_device *bdev,
 				  unsigned long pg_align,
 				  unsigned long pitch_align,
 				  struct drm_mode_create_dumb *args)
@@ -519,7 +520,7 @@ int drm_gem_vram_fill_create_dumb(struct drm_file *file,
 	if (!size)
 		return -EINVAL;
 
-	gbo = drm_gem_vram_create(dev, bdev, size, pg_align);
+	gbo = drm_gem_vram_create(dev, size, pg_align);
 	if (IS_ERR(gbo))
 		return PTR_ERR(gbo);
 
@@ -614,8 +615,7 @@ int drm_gem_vram_driver_dumb_create(struct drm_file *file,
 	if (WARN_ONCE(!dev->vram_mm, "VRAM MM not initialized"))
 		return -EINVAL;
 
-	return drm_gem_vram_fill_create_dumb(file, dev, &dev->vram_mm->bdev,
-					     0, 0, args);
+	return drm_gem_vram_fill_create_dumb(file, dev, 0, 0, args);
 }
 EXPORT_SYMBOL(drm_gem_vram_driver_dumb_create);
 
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
index 2f668b71fb4c..50b988fdd5cc 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
@@ -50,8 +50,7 @@ void hibmc_mm_fini(struct hibmc_drm_private *hibmc)
 int hibmc_dumb_create(struct drm_file *file, struct drm_device *dev,
 		      struct drm_mode_create_dumb *args)
 {
-	return drm_gem_vram_fill_create_dumb(file, dev, &dev->vram_mm->bdev,
-					     0, 16, args);
+	return drm_gem_vram_fill_create_dumb(file, dev, 0, 16, args);
 }
 
 const struct drm_mode_config_funcs hibmc_mode_funcs = {
diff --git a/drivers/gpu/drm/mgag200/mgag200_cursor.c b/drivers/gpu/drm/mgag200/mgag200_cursor.c
index dd54fd507e13..d491edd317ff 100644
--- a/drivers/gpu/drm/mgag200/mgag200_cursor.c
+++ b/drivers/gpu/drm/mgag200/mgag200_cursor.c
@@ -208,8 +208,7 @@ int mgag200_cursor_init(struct mga_device *mdev)
 		return -ENOMEM;
 
 	for (i = 0; i < ncursors; ++i) {
-		gbo = drm_gem_vram_create(dev, &dev->vram_mm->bdev,
-					  size, 0);
+		gbo = drm_gem_vram_create(dev, size, 0);
 		if (IS_ERR(gbo)) {
 			ret = PTR_ERR(gbo);
 			goto err_drm_gem_vram_put;
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index 613fdc2b4b1e..ee4fb9c53d9f 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -120,8 +120,7 @@ int mgag200_driver_dumb_create(struct drm_file *file,
 	if (mgag200_pin_bo_at_0(mdev))
 		pg_align = PFN_UP(mdev->mc.vram_size);
 
-	return drm_gem_vram_fill_create_dumb(file, dev, &dev->vram_mm->bdev,
-					     pg_align, 0, args);
+	return drm_gem_vram_fill_create_dumb(file, dev, pg_align, 0, args);
 }
 
 static struct drm_driver driver = {
diff --git a/include/drm/drm_gem_vram_helper.h b/include/drm/drm_gem_vram_helper.h
index 219474c7d584..573e9fd109bf 100644
--- a/include/drm/drm_gem_vram_helper.h
+++ b/include/drm/drm_gem_vram_helper.h
@@ -93,7 +93,6 @@ static inline struct drm_gem_vram_object *drm_gem_vram_of_gem(
 }
 
 struct drm_gem_vram_object *drm_gem_vram_create(struct drm_device *dev,
-						struct ttm_bo_device *bdev,
 						size_t size,
 						unsigned long pg_align);
 void drm_gem_vram_put(struct drm_gem_vram_object *gbo);
@@ -109,7 +108,6 @@ void drm_gem_vram_vunmap(struct drm_gem_vram_object *gbo, void *vaddr);
 
 int drm_gem_vram_fill_create_dumb(struct drm_file *file,
 				  struct drm_device *dev,
-				  struct ttm_bo_device *bdev,
 				  unsigned long pg_align,
 				  unsigned long pitch_align,
 				  struct drm_mode_create_dumb *args);
-- 
2.24.1

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  parent reply	other threads:[~2020-01-06 12:58 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-06 12:57 [PATCH v4 0/8] drm/vram-helper: Various cleanups Thomas Zimmermann
2020-01-06 12:57 ` [PATCH v4 1/8] drm/hisilicon/hibmc: Switch to generic fbdev emulation Thomas Zimmermann
2020-01-06 12:57 ` [PATCH v4 2/8] drm/hisilicon/hibmc: Replace struct hibmc_framebuffer with generic code Thomas Zimmermann
2020-01-06 12:57 ` [PATCH v4 3/8] drm/vram: Support scanline alignment for dumb buffers Thomas Zimmermann
2020-01-06 12:57 ` [PATCH v4 4/8] drm/hisilicon/hibmc: Implement hibmc_dumb_create() with generic helpers Thomas Zimmermann
2020-01-06 12:57 ` [PATCH v4 5/8] drm/hisilicon/hibmc: Export VRAM MM information to debugfs Thomas Zimmermann
2020-01-07  9:07   ` Gerd Hoffmann
2020-01-06 12:57 ` [PATCH v4 6/8] drm/vram-helper: Remove interruptible flag from public interface Thomas Zimmermann
2020-01-07  9:08   ` Gerd Hoffmann
2020-01-06 12:57 ` Thomas Zimmermann [this message]
2020-01-07  9:09   ` [PATCH v4 7/8] drm/vram-helper: Remove BO device " Gerd Hoffmann
2020-01-06 12:57 ` [PATCH v4 8/8] drm/vram-helper: Support struct drm_driver.gem_create_object Thomas Zimmermann
2020-01-07  9:11   ` Gerd Hoffmann

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